We divide 816959 by 90
Our goal is to divide 816959 by 90.

Going ahead to step 1:
90 goes into 8 0 times with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 90

Advancing to step 2:
If we divide 81 by 90, we get 0 and a remainder of 81.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 81, we end up with 81.
Grab the next digit (6) from the dividend, add it to 81, then carry on: 816 / 90

On to step 3:
When dividing 816 by 90, we get 9 with a remainder of 6.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
Subtracting 810 from 816 leaves us with 6.
Include the next digit (9) from the dividend after 6, then repeat: 69 / 90

Moving on to step 4:
When dividing 69 by 90, we get 0 with a remainder of 69.
Put 0 as the next digit of the answer. 
Result so far: 90.0
If we subtract 0 from 69, we get 69.
Include the next digit (5) from the dividend after 69, then repeat: 695 / 90

Going ahead to step 5:
695 divided by 90 is 7 with a remainder of 65.
Use 7 as the next digit of our solution. 
Result so far: 907.0
Subtracting 630 from 695 leaves us with 65.
Append the next digit (9) from the dividend to 65 and continue with: 659 / 90

On to step 6:
When dividing 659 by 90, we get 7 with a remainder of 29.
Write down 7 as next digit of the result. 
Result so far: 9077.0
If we take 630 away from 659, we end up with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Let's proceed to step 7:
If we divide 290 by 90, we get 3 and a remainder of 20.
Use 3 as the next digit of our solution. 
Result so far: 9077.3
Subtract 270 from 290 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 8:
The number 90 fits into 200 2 times, leaving a remainder of 20.
Put 2 as the next digit of the answer. 
Result so far: 9077.32
The remainder is 20 after subtracting 180 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 9:
When dividing 200 by 90, we get 2 with a remainder of 20.
The next digit of our result is 2. 
Result so far: 9077.322
Subtracting 180 from 200 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final result is 9077.322 with a remainder of 0.002.